HG/T 20592  法兰 WN 50-63 RF S=4.15 RF Sch40�

WN 50(A)-63 RF S=4.15 RF Sch40�

LWN 50-150 RFquot24 L=21153S

WN80(B)-40MFMB)-11=10500f-1

LWN40-150 RF H=16800-1.6RF SCH16

2A5 S592.5 PL R0SM0S16000.5 R

wn100 -25rf A

3 FM1100-6.43-142Flog0.FRFRRF 168.500f-1

PL450B-6RF116 RF b=1-1.6RFS4

WN25-40F